🇬🇧 en sv 🇸🇪

radon noun

  /ˈɹeɪdɒn/
  • The chemical element (symbol Rn, formerly Ro) with atomic number 86. It is an odorless, colorless, chemically inert but radioactive noble gas.
 radon

🇸🇪 sv en 🇬🇧

radon noun {n}

radon
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